Owens Valley Radio Observatory

Owens Valley Radio Observatory (OVRO) is the radio astronomy observatory of the California Institute of Technology,
located near Bishop, California, about 400 kilometers north of Los Angeles on the
east side of the Sierra Nevada, at an altitude of 1,220 meters. Its main instruments
are: the Millimeter-Wavelength Array, a new interferometer array of six high-accuracy radio telescopes, each 10.4 meters in diameter and
moveable along a T-shaped railroad track to give the equivalent resolution
of a single 300-meter dish; the 40-Meter Telescope, a single
dish built in 1965; and the Solar Array, consisting of
two 27-meter telescopes, dating from 1960, that is now used as an interferometer
for studying magnetic field variations on the Sun.